package fjut.acm.coding.service;


import fjut.acm.coding.entity.UserProblemSolved;

public interface UserProblemSolvedService {

    /**
     * 根据用户名和题目ID查询解题记录
     *
     * @param username
     * @param problemId
     * @return
     */
    UserProblemSolved selectUserSolved(String username, Integer problemId);
}
